Crown Verity grill bodies, legs, cooking grates, burners, under shelves, radiants, water pans, fasteners, pilot tubes, are all 304 series stainless steel for durability and ease of cleaning. Compared to units made of metal or 430 stainless steel, Crown Verity units will never rust. 15,000 BTUH stainless steel burners are placed every 5.75” to ensure the most even heat pattern possible. These units heat up to cooking temperature within 6 minutes and will reach 800 degrees in 10 minutes. The stainless steel burners and stainless steel cooking grids are warranted for 10 years!